Other
New Dana System Mineralogy Database
Over 3,900 mineral species descriptions are included in this HTML-linked table of Dana classifications for all known valid mineral species. 3-D models are available for over 600 minerals.
Other
Webmineral.com: Mineralogy Database: Calcite Mineral Data
This site by David Barthelmy gives exceptionally detailed information on the mineral calcite, with photos and clear terminology, crystallography data, Dana and Strunz classifications and much more.
Other
Mineralogy Database
Detailed site providing exceptional information on copper composition, images, crystallography, Dana and Strunz classifications and much more.